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Person holding two lock cylinders beside an open painted door, with loose hardware and debris on the sill. — Seized & Jammed Lock Opening, Toronto

Emergency Lockouts · Toronto

Seized & Jammed Lock Opening

The old mortise lock on the front door of the house turns the key halfway and stops with a dull clunk. It has been getting harder for months, and the brass key is starting to show a bend.

Call now · open 24/7(289) 806-4961

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In plain words

Many jammed locks are not lock problems at all. Wood doors swell in humid weather and shrink in dry winter air, hinges loosen and let the door drop, and a strike plate that was fine in spring is a few millimetres out by autumn. When that happens the bolt is squeezed in its pocket and the key cannot move it. The locksmith checks this first by loading the door in different directions while working the key, and by comparing how the lock behaves with the door open. If the door is the cause, the opening is gentle and the lasting fix is a hinge, strike or seal adjustment.

Sound familiar?

It is the coldest morning of the winter and the key goes halfway into the side door and stops. There is frost on the face of the cylinder, and the door on the shaded side of the house has done this before.

How the visit goes

Seized & Jammed Lock Opening · Toronto

How the visit goes

Steel push bar with a latch housing, hinge plate, screws, screwdriver and tape measure on a worn bench beside an open box.
  1. 1

    The key in your hand

    Before blaming the lock, the locksmith looks at the key. A key that has been copied from another copy several times drifts away from the true cuts, a worn key no longer lifts the pins to the shear line, and a bent key binds before it is fully seated. If an original or a rarely used spare exists, it is tried; a lock that opens with the spare has told you the problem. Some cylinders also retain the key until the plug is returned to its neutral position, and a key that seems trapped may simply be a plug that has not come back. A fresh key cut from the code is a common outcome.

  2. 2

    Proving it with the door open and shut

    The job is finished with testing rather than with the last screw. The bolt is thrown and drawn back with the door open to prove the lock itself, then with the door closed to prove the door and strike, then from the inside with the thumb-turn or lever. Every key you hold is tried, including the spare from the drawer. If the door is a main exit, the locksmith confirms it opens from inside with one motion and no key. Any hardware that was adjusted is cycled a dozen times to make sure it stays put, and the finish is wiped clean of cleaner and lubricant.

  3. 3

    For a business: a door the staff can rely on

    On a commercial door the handover includes the people who use it. Whoever opens in the morning is shown how the lever, key and cylinder now behave, and the exit side is demonstrated so everyone knows the door opens from inside with one motion. If the mortise case was serviced, the parts that were replaced are named so a future locksmith knows what is in there. A note of which keys were tested and who holds them supports whatever key control the business runs. Spare keys are checked in the lock before they go back in the safe.

In the van

  • Penetrating lubricant
  • Dry PTFE or graphite lock lubricant
  • Lock de-icer
  • Electronic contact cleaner
  • Replacement tailpiece or cam

What affects the quote

  1. 1

    Which part is jammed

    A bolt pinned by the door, a cylinder clogged with grit and a broken tailpiece are three different jobs with three different amounts of work, and the quote follows the diagnosis rather than the symptom.

  2. 2

    Matching finish and keyway

    A replacement that has to match an unusual finish or a restricted keyway takes a specific part rather than a stock one, and the quote reflects the part.

  3. 3

    How many locks are affected

    One seized side door is the simplest case; a front and back door that both drag, or a storefront with two leaves, adds hardware and time to the visit.

Same fees day, night or weekend.

Have it ready

Before you call · 0 / 3

(289) 806-4961

Seized & Jammed Lock Opening: questions

Advice · (289) 806-4961

Why do locks jam more in winter?

Two reasons meet in the same season. Freeze-thaw weather sends meltwater into the keyway by day and freezes it by night, and cold thickens any old grease or oil that has been sprayed into the pins. At the same time dry, heated indoor air shrinks wood doors so bolts move in their pockets. Doors on the shaded or windward side get the worst of it. A dry lubricant, a keyhole cover and a check of the strike after the first hard frost take care of most of it.

Should I spray something into the keyway while I wait?

Better not, unless it is a proper dry lock lubricant. Household oils, general penetrating sprays and hinge silicone thicken inside the cylinder and attract grit, so they buy a day and cost a service later. If the lock is frozen, a lock de-icer is fine; boiling water is not, since it refreezes deeper in. The most useful thing to do while waiting is to stop turning the key, so it does not bend or snap.

Can a seized lock be opened without damaging it?

In most cases, yes. A bolt held by the door is freed by relieving the pressure on the door. A cylinder clogged with grit or ice is cleaned and thawed until it turns. A failed tailpiece is bypassed and replaced. The lock stays on the door with its finish and your existing keys. A plug or shell that is worn, damaged, or eaten through by corrosion or earlier forcing is what has to be replaced, and that is explained before any work starts.

Seized & Jammed Lock Opening near you

Toronto, Ontario

Toronto information

Town
Toronto, Ontario
In business
17 years
Hours
Open 24/7 · nights, weekends and holidays, same fees
Visits
On-site assessment preferred. Request a visit or call.

What the census means at the door

58%

Older homes. About 58% of homes in Toronto were built in 1980 or earlier, according to the 2021 Census.

Established homes often have non-standard bores and backsets from an earlier generation of hardware. A locksmith working in such an area carries adapter plates and cylinders in the older sizes, so an upgrade fits the existing door instead of forcing a new one.

23%

Single-detached houses make up about 23% of homes in Toronto (2021 Census).

Where most people live in townhouses, apartments or condos, doors come in two kinds: the suite door you control and the shared entrances the building manages. A locksmith works on your door freely and coordinates with management on the rest.

Source: Statistics Canada, 2021 Census of Population

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Request a visit

The old mortise lock on the front door of the house turns the key halfway and stops with a dull clunk.

Call now · open 24/7(289) 806-4961
  • On-site assessment preferred
  • Same fees day, night or weekend
  • 17 years in business